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120246644 = 227172931281
BaseRepresentation
bin1110010101011…
…01000101110100
322101021011101102
413022231011310
5221240343034
615533145232
72660036210
oct712550564
9271234342
10120246644
11619700a1
123432b218
131bbb227b
1411d81940
15a85397e
hex72ad174

120246644 has 96 divisors (see below), whose sum is σ = 272885760. Its totient is φ = 45158400.

The previous prime is 120246641. The next prime is 120246647. The reversal of 120246644 is 446642021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120246641) and next prime (120246647).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120246641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427784 + ... + 428064.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2120246644 is an apocalyptic number.

120246644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120246644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136442880).

120246644 is an abundant number, since it is smaller than the sum of its proper divisors (152639116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120246644 is a wasteful number, since it uses less digits than its factorization.

120246644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 120246644 is about 10965.7030782344. The cubic root of 120246644 is about 493.5801149452.

Adding to 120246644 its reverse (446642021), we get a palindrome (566888665).

The spelling of 120246644 in words is "one hundred twenty million, two hundred forty-six thousand, six hundred forty-four".

Divisors: 1 2 4 7 14 17 28 29 31 34 58 62 68 116 119 124 203 217 238 281 406 434 476 493 527 562 812 868 899 986 1054 1124 1798 1967 1972 2108 3451 3596 3689 3934 4777 6293 6902 7378 7868 8149 8711 9554 12586 13804 14756 15283 16298 17422 19108 25172 30566 32596 33439 34844 57043 60977 61132 66878 106981 114086 121954 133756 138533 148087 213962 228172 243908 252619 277066 296174 427924 505238 554132 592348 969731 1010476 1036609 1768333 1939462 2073218 3536666 3878924 4146436 4294523 7073332 8589046 17178092 30061661 60123322 120246644